Raging waters have created a strange geological site that looks like something off of a progressive rock album cover.

Largest cave system in Africa.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

Haven for Cape Fur Seals, until the Ring of Death of jumping Great White Sharks arrives.

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

This little Greek plateau is home to thousands of rustic, white-sailed windmills.

A Lycian city of the dead carved into the hillside of Southern Turkey, complete with startlingly human touches.

Hidden just under the waters around this Turkish island are the ruins of a once great city.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

This stunning French estate was so lavish that it landed its original owner in jail for the rest of his life.

The bomb-ravaged remains of of a colossal Neptune.

The opulent home that inspired Tintin's Marlinspike Hall and the adventures within.

This castle-fortress is a living example of the transition from medieval defenses to modern fortifications.

Sky ships, planes, and portraits left as unique tokens of hope and thankfulness.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

This tri-part waterfall is a little bit of fairytale beauty in the heart of Luxembourg's Little Switzerland.

Go inside a revolutionary, cage-less zoo where 35 species live and some of them roam free alongside their human visitors.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

Hiding the longest subterranean river known in the world.

This historic stone gate tower is now just a lonely relic in the middle of a swamp.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.